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      03-31-2012, 03:50 PM   #13
thorny
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Drives: 2007 X5 E70, 2011 M3 E92
Join Date: Apr 2011
Location: Houston, TX

Posts: 947
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So far, I love the throttle response. at WOT it does sound louder than stock, if I were to guess, maybe 10-15%. Exaust tone is damn near the same as stock.

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